body {
  margin: 0px;
}
header {
}
.big-container {
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.center{
  width: 70%;
  /*flex-grow: 1;*/
  margin-left: 10px;
}

app-aside {
  width: 25%;
  /*flex-grow: 1;*/
}

h1 {
  font-size: 1.2em;
  color: #999;
  margin-bottom: 0;
}
h2 {
  font-size: 2em;
  margin-top: 0;
  padding-top: 0;
}

